CN104379336A - Press drive comprising two working areas - Google Patents
Press drive comprising two working areas Download PDFInfo
- Publication number
- CN104379336A CN104379336A CN201380015590.9A CN201380015590A CN104379336A CN 104379336 A CN104379336 A CN 104379336A CN 201380015590 A CN201380015590 A CN 201380015590A CN 104379336 A CN104379336 A CN 104379336A
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- China
- Prior art keywords
- operational mode
- forcing press
- driver
- eccentric
- slide block
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
- B30B1/14—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by cams, eccentrics, or cranks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/268—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks using a toggle connection between driveshaft and press ram
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
Abstract
The invention relates to a press drive (16) for a press (10) or a press (10) having a press drive (16). The invention also relates to a method for controlling the press drive (16) by means of a control unit (40). The press drive (16) is used for moving a tappet (15) of the press in a stroke direction (H) between an upper return point (OT) and a lower return point (UT). It comprises a knee lever gear (24) having a first lever (24) and a second lever (26). A connecting rod engages on the knee lever (27) of the two levers (25, 26) and is connected on the other end (34) to an eccentric (35) of an eccentric drive (33). The control unit (40) can drive the eccentric drive (33) in a first operating mode (B1) or a second operating mode (B2) or a third operating mode (B3). In the first and the second operating modes (B1, B2) the eccentric oscillates in a respectively different angle region (W1, W2,) about a rotation axis (D) of the eccentric drive (33), thus resulting in different force and movement states of the tappet (15) in both operation modes.
Description
Technical field
The present invention relates to the forcing press driver for forcing press.This forcing press driver has knuckle-lever drive device (Kniehebelgetriebe).Knuckle-lever drive device is driven by the eccentric driver that also can be referred to as crank driver.The eccentric driver of knuckle-lever drive device connection forcing press and slide block (St el), thus the actuation movement of the eccentric part of eccentric driver (Exzenter) causes the linear movement of slide block in stroke direction.
Background technology
Forcing press with knuckle-lever drive device is generally known.A kind of forcing press driver with knuckle-lever drive device is learnt, wherein, for the slide block of forcing press is associated with additional actuators by DE 10 2,005 001 878 B3.This additional actuators is particularly useful for guaranteeing enough slide block power in the bending angle scope of the determination of the rod member at knuckle-lever drive device.
DE 10 2,007 022 715 A1 describes a kind of knuckle-lever drive device with two toggle link assemblies, and toggle link assembly can be handled via common Linear actuator, and this Linear actuator loads the knuckle joint portion of two knuckle-lever drive devices.When driving knuckle-lever drive device via Linear actuator, symmetrical relative to the propagation function of the extended position of knuckle-lever drive device, this that is, it take extended position as starting point is implement identical motion deviously towards side or towards opposite side that slide block does not rely on knuckle joint portion.
By the adjustable toggle link driver of the known one of DE 21 27 289 A.Main eccentric part drives the master connecting-rod of the first rod member forming knuckle-lever drive device, and it is connected with slide block via the second rod member.Auxiliary eccentric part loads an arm of both arms rod member via auxiliary connecting rod.Another arm and the knuckle joint portion of both arms rod member are linked.Auxiliary connecting rod is adjustable at the pin joint at both arms rod member and the drive rod place between both arms rod member and knuckle joint portion.The position that adjusting slider is applied to the lower dead center of impact velocity on workpiece, the impulse stroke of slide block stroke, length of stroke and slide block should be realized by this measure.
DE 198 46 951 A1 describes the another kind of forcing press with toggle link driver.First rod member of knuckle-lever drive device is bearing in hydropress frame place, and another rod member is connected with slide block.Connection between these two rod members realizes via triangle guide rod, thus the first rod member and the second rod member are bearing in triangle guide rod place with being spaced apart from each other.In addition, triangle guide rod is connected with eccentric driver via connecting rod.The length of connecting rod is variable.If knuckle-lever drive device waves by its extended position, slide block moves through lower dead center based on the kinematics of this assembly is double rapidly.The position of these two lower dead center is different in stroke direction relative to the reference point at hydropress frame place.If knuckle-lever drive device does not wave by its extended position, then obtain the slide position trend of common near sinusoidal shape.
In the assembly, when knuckle-lever drive device moves through its extended position, the different position of two lower dead center is disadvantageous.
On the other hand, the length of connecting rod of change is not desired in many cases.The motion that length variations changes the end be connected with knuckle joint portion of connecting rod is moved towards.In addition, device (especially when it should be realized by the servo-driver) structure for changing the length of connecting rod is expensive and enlarge markedly the moving-mass of connecting rod.
Summary of the invention
Based on illustrated forcing press driver, object of the present invention can be to provide a kind of structure simple forcing press driver, but its task depending on forcing press provides different operational modes.
This object is realized by the forcing press driver of the feature with Patent right requirement 1.
According to the present invention, forcing press driver has knuckle-lever drive device, and it comprises the first rod member and second rod member that swingingly can be bearing in place of knuckle joint portion each other.Knuckle-lever drive utensil has the first supporting, and it is for being bearing in hydropress frame place swingably by the first rod member.In addition, be provided with the second supporting, it is for being bearing in the slide block place of forcing press swingably by the second rod member.First supporting is preferably irremovable relative to hydropress frame or be not arranged in hydropress frame place movingly.The axis of oscillation of the second supporting is preferably unmodifiable relative to the position of slide block equally.
In addition, knuckle-lever drive utensil has connecting rod, and its one end is bearing in place of knuckle joint portion swingably.Knuckle joint portion especially has common axis of oscillation, and the first rod member, the second rod member become with link supporting and can swing each other around this axis of oscillation.The other end of connecting rod is connected with the eccentric part of eccentric driver.
Alternative in this, one in two rod members or connecting rod also can be embodied as the corresponding triangle guide rod with three articulated position.So there are two articulated position be spaced apart from each other in the region in knuckle joint portion.One in two rod members acts on an articulated position place with connecting rod or two rod members, and remaining rod member or connecting rod act on another articulated position place corresponding.The axis of oscillation of isolated two articulated position especially extends parallel to each other.
Control device is for manipulating eccentric driver.Control device is set up to and drives eccentric driver in the first operational mode or the second operational mode.In another embodiment, the 3rd operational mode or other operational mode can also be there is.The selection of suitable operational mode can automatically be realized by detected or parameter given in advance by control device.As parameter, especially the characterisitic parameter of the operation instruction course of work, the required pressure of such as slide block and/or slide block stroke and/or passing on the time of especially should depending on the ram speed that position is followed and/or put into that forcing press or workpiece remove from forcing press for workpiece.
In the first operational mode and the second operational mode, eccentric driver swingingly drives in corresponding angular range given in advance.At this, eccentric part does not rotate around the pivot center of eccentric driver, but unsteadily moves back and forth between two rotational angles of limited angular scope in corresponding angular range given in advance.Preferably, two angular ranges of corresponding operational mode are so selected, that is, knuckle joint portion moves through the axis of connection first supporting and the second supporting.If knuckle joint portion is on this axis, slide block reaches its lower dead center.If eccentric part once rotates 360 °, slide block arrives its lower dead center for twice, that is, preferably, once in the first angular range of the first operational mode, and once in the second angular range of the second operational mode.Because connecting rod occupies the position be different from the second operational mode in the first operational mode relative to rod member, so when slide block is in its lower dead center, in different operational modes, draw different power situations and motion conditions.Especially different maximum accessible pressure and different ram speeds is drawn when identical eccentric part velocity of rotation.According to the present invention, this inequality to be used in the operational mode that two or three are different the operating pressure machine driver when not have the adjusting means of adding.Adjusting means can be cancelled, its pivot center for eccentric adjustment distance, eccentric part, length of connecting rod or the first supporting or the second position of supporting.Therefore, forcing press driver only needs the component of lesser amt.Its very simple and resistance to land used builds.Gap in forcing press driver is reduced to minimum by the adjusting means that the supporting of minimum number and cancellation add, thus can repeatedly accurately can position slide block.Can control or adjust pressure and/or slide position via control device.When adjusting, be provided with corresponding position sensor and/or force snesor.
In the 3rd operational mode (if being provided with this operational mode), the pivot center rotationally around eccentric driver drives eccentric part.At this, eccentric part is walked around pivot center completely in a rotation direction, and does not swing.3rd operational mode is such as suitable for shaping task, and the pressure provided in the second operational mode is wherein enough.Relative to the second operational mode, when such as needing larger stroke or larger stroke is more suitable for higher output, advantage can be drawn.When eccentric part turns round completely around pivot center slide block move downward and the period that moves upward is different by the kinematic situation of connecting rod and two rod members.This difference by compensating with under type or at least reducing, that is, changes the revolution speed of eccentric driver and therefore to change during turning round eccentric part around the velocity of rotation of pivot center.Can not rely on by this measure the angular range that eccentric part moves wherein and reach identical slide block movement.
Perform in the 4th operational mode and wave operation.Eccentric driver swingingly drives in angular range given in advance.Eccentric part unsteadily moves back and forth in this angular range between two rotational angles of limited angular scope.At this, the angular range of the 4th operational mode is so selected, that is, knuckle joint portion does not move through the axis (extended position) of connection first supporting and the second supporting.Therefore, the region that slide block moves wherein in stroke direction is not included in accessible lower dead center in the extended position in knuckle joint portion.Slide block such as can wave in the section of the curve movement of sinusoidal, is issued to the very large lifter motion of slide block wherein in the situation of the very little rotational motion of eccentric part.This idea also can realize in the driver being different from above-mentioned knuckle-lever drive device, such as, realize in eccentric gearing device, wherein, supports prejudicially and is directly connected with slide block with the connecting rod driven.
Preferably, the first angular range of the first operational mode and the second angular range of the second operational mode do not have overlapping region.The turned position of eccentric part is always different from the turned position of eccentric part in the second angular range in the first angular range.Therefore, two operational modes are completely different each other.
The longitudinal axis of connecting rod is can be regarded as at the axis of the pin joint at eccentric part place by knuckle joint portion and connecting rod.If slide block is in lower dead center in the first operational mode, the longitudinal axis of connecting rod be connected first and support and the second axis supported surrounds the first angle.Correspondingly, when slide block is in its lower dead center in the second operational mode, the longitudinal axis of connecting rod and this axis surround the second angle.The numerical values recited of these two angles is different.Preferably, the numerical value of the first angle is greater than the numerical value of the second angle.In one embodiment, the numerical value of the first angle is at least 1.3 to 1.5 times of the numerical value of the second angle.Therefore, the inequality of the situation in two operational modes is obvious especially.
Preferably, compared with the situation in the second operational mode, the numerical value of the ram speed in the first operational mode when the identical velocity of rotation of eccentric part in lower dead center is less.When the identical torque at eccentric part place, the numerical value of the maximum pressure in the first operational mode can be greater than the numerical value of the maximum pressure in the second operational mode.Control device can be dependent on parameter and automatically selects suitable operational mode.Parameter can be given in advance or detected by control device in trial run via actuation unit by operating personnel.
In a preferred embodiment, when needing the maximum power of forcing press, the first operational mode is automatically set by control unit.In a preferred embodiment, compared with the situation in the second operational mode, in the first operational mode, the maximum accessible power of slide block is larger.The kinematics determined by the arrangement of connecting rod and two rod members of forcing press driver can so be selected, that is, two strokes during eccentric part turns round completely around pivot center are at least approximate equally large.It is also possible that the stroke increased between two strokes in the pivotal situation of eccentric part completely by the kinematics that changes forcing press driver is poor.The difference about the pressure in the first angular range and the second angular range and ram speed can be increased thus.Such as, maximum pressure in the first angular range can be increased when identical eccentric part velocity of rotation relative to the second angular range, and relative to the ram speed that the first angular range increases in the second angular range.
When required pressure can be reached in the second operational mode, control unit automatically setting second operational mode.Which increase the output of forcing press.The pressure needed can be inputted by operating personnel via actuation unit or at least one test stroke by implementing slide block between trial run period is detected by sensor.As already mentioned, between trial run period, other parameter can also be detected by control unit, passing on the duration of such as workpiece.
Forcing press driver can also run more than three illustrated at present operational modes.Such as it is possible that depend on shaping task to select one from maximum accessible four pressure.Additionally, these pressure can be different in the first angular range and the second angular range, depend on slide block and reach lower dead center from which direction (namely the rotation direction of eccentric part around eccentric part pivot center).
Accompanying drawing explanation
Favourable embodiment of the present invention is drawn by description and dependent patent claims.Description defines principal character of the present invention.Accompanying drawing can addedly be considered.The present invention is set forth with reference to accompanying drawing by embodiment below.Wherein:
Fig. 1 shows the diagram of the schematic similar block diagram of the forcing press of the embodiment being with good grounds forcing press driver of the present invention,
Fig. 2 shows the principal diagram of the first embodiment of the forcing press driver for forcing press according to Fig. 1 in the first operational mode,
Fig. 3 shows the principal diagram of the first embodiment of the forcing press driver for forcing press in the second operational mode,
Fig. 4 shows and depends on eccentric part around the slide position of the turned position of the pivot center of eccentric driver and ram speed, and this eccentric driver is used for the first embodiment of forcing press driver, and
Fig. 5 to 7 is corresponding show corresponding with triangle guide rod, for the principal diagram of other embodiment of the forcing press driver of the forcing press according to Fig. 1.
Detailed description of the invention
Fig. 1 shows forcing press 10 with the diagram of the similar block diagram simplified.Forcing press 10 has hydropress frame 11, by it, forcing press 10 is placed or is fixed on base 12.
In addition, forcing press 10 has press bench 13, and the mold members 14 of bottom can be arranged in press bench 13 place.
The slide block 15 of forcing press 10 can move back and forth on stroke direction H via forcing press driver 16.Stroke direction H is preferably vertically directed.Can be furnished with the mold members 17 on top at slide block 15 place, mold members 14 cooperation of itself and bottom, to process (such as shaping) workpiece.Via guiding device 18, slide block 15 is bearing in hydropress frame 11 and/or press bench 13 place movingly on stroke direction H.Guiding device 18 is schematically illustrated by two guide rails 19 in FIG, and slide block 15 guides movably at guide rail 19 place.
Knuckle-lever drive device 24 belongs to forcing press driver 16.Knuckle-lever drive device 24 has the first rod member 25 and the second rod member 26, and it can swingingly be bearing in place of knuckle joint portion 27 each other.First rod member 5 supports 28 places first and is bearing in hydropress frame 11 place swingably on the sidepiece that it is contrary with knuckle joint portion 27.First supporting 28 positions are fixedly placed on hydropress frame 11 place.Second rod member 26 is connected with slide block 15 swingably via the second supporting 29.
At place of knuckle joint portion 27, effect has connecting rod 32.Connecting rod 32 is arranged swingably around the axis of oscillation in knuckle joint portion 27 at one end.The contrary end of connecting rod 32 is associated with eccentric driver 33 and is therefore the drive end 34 of connecting rod 32.Drive end 34 is fixed on eccentric part 35 place of eccentric driver 33 swingably.Eccentric part 35 can around pivot center D rotationally and especially rotate and swingingly drive.Distance between eccentric part 35 and pivot center D is referred to as eccentric throw E and is unmodifiable (Fig. 2 and 3).Eccentric driver 33 is fixed on hydropress frame 11 place.In this embodiment, pivot center D is unmodifiable relative to the position of hydropress frame.Similarly, the length of connecting rod 32 and two rod members 25,26 is constant and does not change by adjusting means.Therefore, forcing press driver 16 structure builds simply.
Respective description forcing press driver 16 relative to the embodiment having amendment according to the embodiment of Fig. 3 in Fig. 5 to 7.Herein, knuckle joint portion 27 is formed by being spaced two articulated position 27a, the 27b arranged that turn up the soil.Articulated position 27a, 27b can be similar to and vertically or flatly be arranged side by side in the extended position of two rod members 25,26.Or connecting rod 32 (Fig. 5) or the first rod member 25 (Fig. 6) or the second rod member 26 (Fig. 7) are designed to triangle guide rod 36.The motion process shown in Figure 4 of slide block relates to embodiment shown in Figure 3 and depends on the kinematics that the arrangement by rod member 25,26 and connecting rod 32 of forcing press driver 16 and design determine and changes.
Eccentric driver 33 is manipulated by control device 40.Control device motion given in advance and the derivative of its time, such as velocity of rotation ω or rotation acceleration.In addition, the torque of eccentric driver 33 determined by control device 40.Eccentric driver can be embodied as electro-motor and especially be embodied as servo motor or torque motor
.such as, eccentric driver 33 can have asynchronous machine and/or driver, especially planetary transmissions.In order to manipulate eccentric driver 33, control device 40 can have inverter.
In addition, forcing press driver 16 can have one or more sensor, to detect at the run duration of forcing press 10 parameter determined.Describe force snesor 41 in the embodiment illustrated herein, it supports 28 be associated with first.By means of the sensor signal of force snesor 41, control device 40 can determine current pressure F.
In addition, according to this example, location sensor 42, its sensor signal is transferred to control device 40.Slide position Z can be determined by the sensor signal of position sensor 42.Also can be sensor signal or parameter that control device 40 provides other.
In addition, there is manipulation device 43 in embodiment illustrated herein, operating personnel input by manipulation device 43 or the manipulation parameter BP run for forcing press given in advance.Handle parameter BP and be transferred to control device 40.Control device 40 can be arranged to adjusting slider position Z and/or pressure F.
In the structural design scheme of the forcing press driver 16 according to this embodiment, the pivot center D of eccentric driver 33 is positioned on the first supporting 28 on stroke direction H.Eccentric throw E so selects, that is, eccentric part 35 depends on its rotational angle α around pivot center D at stroke direction H and can be on or below the first supporting 28.
If eccentric part 35 once rotates about it axis D completely and rotates (rotational angle α=0 ° until α=360 °), knuckle joint portion 27 moves through connection first for twice and supports 28 and the second axis A of supporting 29.In other words, knuckle joint portion 28 occupies its extended position for twice, and two rod members 25,26 are along axis A orientation wherein.In the extended position in knuckle joint portion 27, slide block 15 is in its lower dead center UT.If knuckle joint portion 27 relative axis A has as far as possible large distance, then slide block 15 is in its top dead centre OT.Be defined as according in the figure of Fig. 4, slide block 15 arrives its top dead centre OT in α=0 when ° (also corresponding to α=360 °) in the first rotational angle α 0.The complete rotation of eccentric part 35 is divided into first area S1 and second area S2 by the first rotational angle α 0.In the S1 of first area, slide block 15 arrives its lower dead center UT when the second rotational angle α 1, and in second area S2, slide block 15 arrives its lower dead center UT when the 3rd rotational angle α 2.Based on the kinematics of knuckle-lever drive device 24, the motion of slide block 15 in two regions S1, S2 is different.This is attributable to the position of connecting rod 32 relative to two rod members 25,26 is different in two regions S1, S2.
Control device 40 is set up to and runs eccentric driver 16 in the first operational mode B1, the second operational mode B2 or the 3rd operational mode B3.First operational mode B1 so implements, that is, eccentric part 35 rotates with the second rotational angle α 1 and unsteadily drives in the first angular range W1.First angular range W1 to be in the S1 of first area and maximum equally large with first area S1.In the second operational mode B2, eccentric part 35 rotates unsteadily or rotates and swingingly drives with the 3rd rotational angle α 2 in the second angular range W2 around pivot center D.It is interior and maximum equally large with second area S2 that second angular range W2 is in second area S2.The size of two rotational angle range W1 and W2 depends on the required stroke of slide block 15.If angular range W1, W2 are less than corresponding region S1, S2 of being associated, the maximum attainable stroke of slide block 15 is not fully utilized and is used only in a part of the curves of kinetic feature Z (α) shown in Fig. 4.So top dead centre OT moves towards OT' or OT''.
In the 3rd operational mode B3, eccentric part 35 drives rotationally around pivot center D in rotation direction given in advance.Therefore, eccentric part 35 is at the circuit orbit upper rotary around pivot center D.When turning round at every turn, not merely through a first angular range W1, and through a second angular range W2.
The longitudinal axis L of connecting rod 32 connects the axis of oscillation in knuckle joint portion 27 and the axis of oscillation between eccentric part 35 and the drive end 34 of connecting rod 32.If rotational angle α is corresponding to the second rotational angle α 1, slide block 15 is in its lower dead center UT in the first operational mode B1.In the first operational mode B, when slide block 15 is in its lower dead center UT, longitudinal axis L with support the 28 and second axis A supporting 29 by first and surround the first angle l (Fig. 2).Correspondingly, when slide block 15 is in its lower dead center UT in the second operational mode B2, the longitudinal axis L of connecting rod 32 surrounds the second angle 2 (Fig. 3) in the second operational mode B2 with axis A.As the first angle l and the second angle 2, the less angle of corresponding measurement between longitudinal axis L and axis A.Angle l, 2 is acute angles.The numerical value of the first angle l is larger, and is 1.3 to 1.5 times of the numerical value of the second angle 2 according to this example.For this reason, compared with the situation in the second operational mode B2, the maximum pressure Fmax provided by slide block 15 when the torque of the determination of eccentric driver 22 in the first operational mode B1 is larger.
Curves of kinetic feature Z (α) compares more smooth in the second angular range W2 in the second operational mode B2 in the first operational mode B1 in the first angular range W1.Therefore, compared with the situation in the second operational mode B2, the ram speed V in the first operational mode B1 in lower dead center UT is less.Therefore, the larger pressure F of slide block 15 can be provided in the first operational mode B1.In the second operational mode B2, larger number of strokes can be reached when the identical stroke of slide block 15 due to higher ram speed V and therefore reach the larger output of forcing press 10.Figure 4 illustrates the ram speed curve V (α) depending on rotational angle α.
In a preferred embodiment, control device 40 is set up to depend on and automatically sets the first operational mode B1 or the second operational mode B2 alternatively through parameter P that determine and/or given in advance.As parameter P, use by actuation unit 43 manipulation parameter BP given in advance and/or the parameter that detected by sensor, the number of strokes of such as pressure F, slide position Z, forcing press, the stroke of slide block, ram speed, to put into for workpiece in forcing press 10 and/or take out from forcing press 10 pass on duration or similar parameter.Mentioned parameter can combine to use arbitrarily.It is also feasible that, control device 40 to be switched in test/trial running mode and in parameter P during one or more test strokes of slide block 15 required for sensor detects at least partially and suitable operational mode B1, B2 are proposed thus.This suitable operational mode can such as be shown by actuation unit 43 and be supplied to operating personnel.Operating personnel can accept or refuse proposed operational mode.
Based on kinematic size and maximum motor torque, the pressure provided can determined on punching press path for the first operational mode and the second operational mode B1, B2.When to provide the operational mode of less pressure to there is pressure requirements, especially to determine when considering the boundary condition given in advance by operator that in the second operational mode B2 whether the output of forcing press is higher when eccentric part turns round completely when slide block pendulum is moved or in the 3rd operational mode B3.Correspondingly select the second operational mode B2 or the 3rd operational mode B3.At this, preferably also consider the need of whole slide block stroke.Such as in the point of the determination of slider feature curve or the ram speed of section and/or slide block maximum speed by the boundary condition that operator is given in advance.When pressure requirements is higher, only stay more by force but the first slower operational mode B1, and only still can accept the output that calculates.
Conflict if detected between the parameter detected by sensor with the manipulation parameter BP given in advance via actuation unit 43, propose suitable operational mode B1, B2 by control device via actuation unit 43 and demonstrate this conflict.
The present invention relates to the forcing press driver 16 for forcing press 10 or the forcing press 10 with forcing press driver 16.The invention still further relates to for the method by means of control device 40 controlled pressure machine driver 16.Forcing press driver 16 moves on stroke direction H for making the slide block 15 of forcing press between top dead centre OT and lower dead center UT.Forcing press driver 16 has the knuckle-lever drive device 24 with the first rod member 24 and the second rod member 26.Connecting rod 32 acts on the place of knuckle joint portion 27 of two rod members 25,26 and is connected with the eccentric part 35 of eccentric driver 33 at the other end 34 place.Control device 40 can drive eccentric driver 33 in the first operational mode B1 or the second operational mode B2 or especially also in the 3rd operational mode B3.In the first operational mode B1 and the second operational mode B2, the pivot center D of eccentric part around eccentric driver 33 in corresponding different angular range W1, W2 swings.Obtain power states different in two operational modes and the motion state of slide block 15 thus.
Reference numerals list
10 forcing presses
11 hydropress frames
12 pedestals
13 press bench
The mold members of 14 bottoms
15 slide blocks
16 forcing press drivers
The mold members on 17 tops
18 guiding devices
19 guide rails
24 knuckle-lever drive devices
25 first rod members
26 second rod members
27 knuckle joint portions
27a, 27b articulated position
28 first supportings
32 connecting rods
33 eccentric drivers
34 drive ends
35 eccentric parts
36 triangle guide rods
40 control device
41 force snesor
42 position sensors
43 actuation units
α rotational angle
α 0 first rotational angle
α 1 second rotational angle
α 2 the 3rd rotational angle
L first angle
2 second angles
ω velocity of rotation
A axis
Bl first operational mode
B2 second operational mode
B3 the 3rd operational mode
BP handles parameter
D pivot center
E eccentric throw
F pressure
L longitudinal axis
OT top dead centre
S1 first area
S2 second area
UT lower dead center
V ram speed
Wl first angular range
W2 second angular range
Z slide position.
Claims (16)
1. the forcing press driver (16) for forcing press (10), with:
Knuckle-lever drive device (24), it has first rod member (25) and the second rod member (26) that swingingly can be bearing in knuckle joint portion (27) place each other,
Wherein, described knuckle-lever drive device (24) has the first supporting (28) and the second supporting (29), wherein, described first rod member (25) is bearing in hydropress frame (11) place at first supporting (28) place, described second rod member (26) is connected with the slide block (15) of described forcing press (10) at second supporting (29) place
Connecting rod (32), its one end is bearing in described knuckle joint portion (27) place swingably, and its other end (34) is connected with the eccentric part (35) that can move around pivot center (D) of eccentric driver (33)
For manipulating the control device (40) of described eccentric driver (33), it is set up to and drives described eccentric driver (33) in the first operational mode (B1) or the second operational mode (B2),
Wherein, described eccentric part (35) swingingly drives in the first operational mode (B1) in the first angular range (W1) given in advance, and swingingly drives in the second angular range (W2) given in advance in the second operational mode (B2).
2. forcing press driver according to claim 1, it is characterized in that, control device (40) for manipulating described eccentric driver (33) is set up to and drives described eccentric driver (33) in the 3rd operational mode (B3), and described eccentric part (35) turns round completely around pivot center (D) wherein.
3. forcing press driver according to claim 1 and 2, is characterized in that, two angular ranges (W1, W2) do not have overlapping region.
4. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, described knuckle joint portion (27) is at operational mode (B1, B2, B3) in one in move through and connect described first supporting (28) and described second and support the axis (A) of (29).
5. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, described knuckle joint portion (27) is at operational mode (B1, B2, B3) in a middle largest motion support the axis (A) of (29) until connect described first supporting (28) and described second.
6. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, control device (40) for manipulating described eccentric driver (33) is set up in the 4th operational mode or at the first operational mode or the second operational mode (B1, B2) so described eccentric driver (33) is driven in, namely, described eccentric part (35) swingingly drives in angular range given in advance, wherein, described knuckle joint portion had not both arrived the axis (A) connecting described first supporting (28) and described second supporting (29), this axis is not moved through yet.
7. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, when described slide block (15) is in its lower dead center (UT), the longitudinal axis (L) of described connecting rod (32) be connected described first and support the axis (A) (28) and described second supporting (29) surround the first angle (l) in the first operational mode (B1), and when described slide block (15) is in its lower dead center (UT), longitudinal axis (L) and the described axis (A) of described connecting rod (32) surround the second angle (2) in the second operational mode (B2), wherein, two angle (l, 2) there is different numerical value.
8. forcing press driver according to claim 7, is characterized in that, the numerical value of described first angle (l) is greater than the numerical value of described second angle (2).
9. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, compared with in the second operational mode (B2), the numerical value of the ram speed (V) in the first operational mode (B1) when identical velocity of rotation (ω) of described eccentric part (35) before and after described lower dead center (UT) is less.
10. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, described control unit (40) automatically setting can realize the operational mode (B1, B2, B3) of the maximum output of described forcing press (10).
11. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, first maximum pressure of described slide block (15) is provided in the first operational mode (B1), and the second maximum pressure of described slide block (15) is provided in the second operational mode (B2), wherein, described first maximum pressure is greater than described second maximum pressure.
12. forcing press drivers according to claim 11, is characterized in that, when required pressure is greater than described second maximum pressure, described control unit (40) is setting the first operational mode (B1) automatically.
13. according to forcing press driver in any one of the preceding claims wherein, it is characterized in that, described control unit (40) causes the test stroke of described slide block (15) and the pressure (F) required for this detection in trial run state.
14., according to forcing press driver in any one of the preceding claims wherein, is characterized in that, described first supporting (28) is immovably arranged in described hydropress frame (11) place.
15., according to forcing press driver in any one of the preceding claims wherein, is characterized in that, the length of two rod members (25,26) and/or described connecting rod (32) is immutable.
16., according to forcing press driver in any one of the preceding claims wherein, is characterized in that, position and/or its eccentric throw (E) of the pivot center (D) of described eccentric driver (33) are immutable.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012102527.4 | 2012-03-23 | ||
| DE102012102527.4A DE102012102527B4 (en) | 2012-03-23 | 2012-03-23 | Press drive with several working areas |
| PCT/EP2013/054310 WO2013139578A1 (en) | 2012-03-23 | 2013-03-05 | Press drive comprising two working areas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104379336A true CN104379336A (en) | 2015-02-25 |
| CN104379336B CN104379336B (en) | 2017-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380015590.9A Active CN104379336B (en) | 2012-03-23 | 2013-03-05 | Forcing press driver with two working regions |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US10589484B2 (en) |
| CN (1) | CN104379336B (en) |
| DE (2) | DE102012102527B4 (en) |
| WO (1) | WO2013139578A1 (en) |
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| CN106182870A (en) * | 2015-05-29 | 2016-12-07 | 安德里特斯公开股份有限公司 | For the device by the heap lamination compacting of slurry |
| CN106734500A (en) * | 2016-12-27 | 2017-05-31 | 武汉理工大学 | A kind of servomotor drives the mechanical high speed fine punching machine host of main motion |
| CN108437518A (en) * | 2018-03-18 | 2018-08-24 | 湖北贝利莱机械设备有限公司 | A kind of vertical pressure type trash compactor of pressure head translation |
| CN110355250A (en) * | 2019-08-12 | 2019-10-22 | 济南二机床集团有限公司 | A kind of toggle rod type machinery bound edge press machine |
| CN111804790A (en) * | 2020-07-10 | 2020-10-23 | 林宝勤 | Punching machine |
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| DE102012102527B4 (en) * | 2012-03-23 | 2014-10-09 | Schuler Pressen Gmbh | Press drive with several working areas |
| DE102014111683B4 (en) | 2014-08-15 | 2016-06-30 | Georg Maschinentechnik GmbH & Co. KG | Press drive for a forming device |
| AT517265B1 (en) * | 2015-05-29 | 2018-04-15 | Andritz Ag Maschf | Apparatus for compacting pulp flakes |
| CN107377720A (en) * | 2017-07-13 | 2017-11-24 | 滁州华宇机件有限公司 | A kind of air conditioner housing is used with the decompressor for stablizing punching structure |
| DE102017116784B4 (en) | 2017-07-25 | 2019-10-10 | Schuler Pressen Gmbh | Press and method for operating a press |
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Also Published As
| Publication number | Publication date |
|---|---|
| US10589484B2 (en) | 2020-03-17 |
| WO2013139578A1 (en) | 2013-09-26 |
| DE102012102527A1 (en) | 2013-09-26 |
| DE112013001648A5 (en) | 2014-12-24 |
| US11141945B2 (en) | 2021-10-12 |
| US20200147913A1 (en) | 2020-05-14 |
| DE102012102527B4 (en) | 2014-10-09 |
| DE112013001648B4 (en) | 2024-02-29 |
| US20150053101A1 (en) | 2015-02-26 |
| CN104379336B (en) | 2017-07-18 |
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